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Service bulletins for the 2017 BMW 340i

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

299 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
B6507092018-10-09. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION SYSTEM: REPORTING MISSING OR INCORRECT ROAD MAP DATA: The route guidance is inaccurate and therefore irritating to the customer; or it is not possible to locate certain addresses, for instance:
B5203182018-10-09. Service bulletin. SEATS. MEMORY SEAT ADJUSTMENT IS LIMITED: After programming the vehicle with ISTA 4.10.2x, the adjustment range of the memory seat may restricted.
B1204182018-10-09. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING. BUZZING NOISE FROM VALVETRONIC MOTOR BEFORE OR AFTER ENGINE OPERATION: Buzzing noise may be heard from the Valvetronic motor when the vehicle is unlocked, before the engine is started, or after the engine is turned off.
B8408182018-08-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. HEAD UNIT HIGH 2 RESET WHILE BLUETOOTH IS CONNECTED: The following event may cause an unexpected reset of the Head Unit High 2 (NBT EVO) when:
B8406162018-08-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. BMW ONLINE NON-FUNCTIONAL: CHECK ICC-ID IN ACCOUNT: BMW Online/BMW ConnectedDrive not functional.
B6511172018-08-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION PRO (NBT EVO) MAP UPDATE NOT POSSIBLE, NAVIGATION DOES NOT START: Navigation system will not start at all or the: ÒNavigation system startsÓ message is permanently displayed; or
B6507092018-08-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION SYSTEM: REPORTING MISSING OR INCORRECT ROAD MAP DATA: The route guidance is inaccurate and therefore irritating to the customer; or it is not possible to locate certain addresses, for instance:
B8403142018-07-16. Service bulletin. EQUIPMENT:ELECTRICAL. Bluetooth Connection Failures: There are various connectivity failures with the following devices: Apple iPhones: Samsung S6 and the S6 Edge.
B6608142018-07-16. Service bulletin. BACK OVER PREVENTION. Side View Camera Does Not Display Picture.
B6513162018-07-16. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NBT-EVO (NEXT GENERATION NAVIGATION PROFESSIONAL) HEAD UNIT CANNOT BE SWAPPED BETWEEN VEHICLES FOR TESTING. ÕCOMPONENT PROTECTION ACTIVEÕ
B6503182018-07-16. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. NO AUDIO PLAYBACK AFTER REPLACING THE HEAD UNIT HIGH 2 (HU-H2): After replacing the Head Unit High (HU-H2) and performing ISTA4 programming, there is no audio playback.
B6113162018-07-16. Service bulletin. ELECTRICAL SYSTEM. KLE CHARGING FAULT 21E6E9: During the ISTA short test diagnosis, fault code 21E6E9 Ð ÒCharging electronics: Charging mode interruptedÓ is found stored in the KLE (Convenience Charging Electronics) module.
B5130162018-07-16. Service bulletin. STRUCTURE:BODY:TAILGATE. TAILGATE UNINTENTIONALLY OPENS: Trunk/tailgate may open when vehicle is locked.
B1203182018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. NO AUDIBLE DIFFERENCE IN EXHAUST WITH "M PERFORMANCE POWER AND SOUND KIT
B1202182018-07-16. Service bulletin. ENGINE AND ENGINE COOLING. F2X F3X -THE ENGINE STARTS THEN SWITCHES OFF IMMEDIATELY: After starting the engine and immediately selecting a drive gear, the engine may switch off.
B8408182018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT. HEAD UNIT HIGH 2 RESET WHILE BLUETOOTH IS CONNECTED: The following event may cause an unexpected reset of the Head Unit High 2 (NBT EVO) when:
B8407182018-05-21. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL. IPHONE: CALL LIST MISSING AFTER RESTART: The call list from iPhone 8 or iPhone X, that is displayed, is missing after cycling the ignition.
B6513162018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. NBT-EVO Head Unit Cannot be Swapped between Vehicles for Testing: If either the NBT-EVO head unit or Body Domain Controller (BDC) are swapped into a different vehicle they will cause the head unit NBT-EVO to enter a locked mode once it recognizes a different VIN.
B6212152018-05-21. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. INSTRUMENT CLUSTER OUTSIDE TEMPERATURE DISPLAY IMPLAUSIBLE: In the Instrument Cluster (Kombi) display you may observe an implausible outside temperature reading.
B1207182018-05-21. Service bulletin. ENGINE. DME FC 1C0102 IS STORED WITH NO OTHER RELATED FAULTS: The following fault has been stored in the Digital Motor electronics (DME) fault memory with no other engine oil pressure faults stored.
B8402142018-05-14. Service bulletin. ELECTRICAL SYSTEM. ConnectedDrive/BMW Assist System Diagnosis Information
B6526172018-05-14. Service bulletin. EQUIPMENT. NBT EVO CHANGES BETWEEN SELECTIONS BY ITSELF WITHOUT DRIVER INPUT- GHOST BEHAVIOR: The Central Information Display (CID) changes between selections (ghost behavior) and sounds an audio tone without the CID Screen being touched.
B6525172018-05-14. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. ENTRY EVO HEAD UNIT WILL NOT PLAY MP3 FORMATTED CD's: Data CDÕs (encoded as MP3Õs) can NOT be played.
B6509152018-05-14. Service bulletin. EQUIPMENT:ELECTRICAL. NBT Head Unit High (HU-H) Resets Intermittently or Permanently
B6309172018-05-14. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS. REAR TAIL LIGHT FAILURE: Exterior rear lights do not work.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.